cmd

type CmdError struct {
	Stderr string
	Err    error
}

type CmdRunner interface {
	SetError(cmdError CmdError)
	RunCmd(name string, args ...string) (string, CmdError)
	RunInNewRunner(name string, args ...string) (string, CmdError)
	NewRunner() CmdRunner
	LastError() CmdError
	HasError() bool
}